Feb 22 (Reuters) - Delta Air Lines said on Mondaythat Flight DL2123 from Atlanta to Seattle on a Boeing757-200 made an emergency landing at Salt Lake InternationalAirport after an engine performance issue.

A Delta spokeswoman said the plane diverted "out of anabundance of caution following an indicator warning of apossible problem with one of its engines."

The flight landed safely without incident and taxied to thegate without assistance, she said, adding that the company wasworking to reaccommodate customers on a later flight.

A person familiar with the matter said the issue was notsimilar to an engine failure on a United Airlines Boeing777-200 flight on Saturday.(Reporting by Tracy Rucinski, Editing by Rosalba O'Brien)